Door-fastening device



6 Sheets-Shea?l l I L'l/ enfaff /jyez'wrzae uffequu l lllllllnJ M. COURTEAU DOOR FASTENING DEVICE Filed Sept. 19

Dec; 28 1926.

Dec. 28 1926.

Y M. COURTEAU DooR FASTENING DEVICE Filed set. 19,

1925 6 sheets-sheet a Even/far.'

M. couRTEAu DOOR FASTENING DEVICE Filed sept. 1,9-, 1925 6 sheetsfshe'et 4 Dec. 28,1926. 1,612,360

M.` CQUR-TEAU DooR FASTENING DEVICE Filed sept. 19, i925 6 snags-sheet 5 M. couR-rEAU DooR FASTENING DEVICE.

Dec. 28 1926.

Filed sepi. 19'. 1925 6,s1-.eet ssheet 6 Patented Dec. 28, 1926.

UNITED, STATES 1,612,360 f PAT-.ENT OFFICE.

MAURICE CO'UBTEAU, 0F PARIS, FRANCE, .SSIGNOR T0 FRANCIS MOREAU, OF HANOI,

TONKIN.

Doon-FASTENING DEVICE.

Application led September 19, 1925, Serial No. 57,397, andv in France October 1, 1924.

My invention relates to a device for the fastening ot doors which open to the outside, such as the doors of railway. or of motor vehicles, and the like. By the use vof my said fastening device l am enabled to prevent all spontaneous opening of the door whereby all accidents due to such opening will be avoided.

My said device comprises fastening elements which consist firstly of an inner door handle which may be turned down behind the door post and secondly of an outer latch whichl engages in a hook-shaped keeper and is automatically held in place by a spring-mounted and hand controlled fastening catch...

In a modification, thesaid latch is mounted directly upon the spindle of the handles. The hook-shaped keeper is eliminated, and

is replaced by a keeper which is inserted into the door post, and projects therefrom only to a moderate extent. This projecting part has the form of a ramp, and it serves to guide the irst part of the movement of the inner handle and of the door latch sition, with parts broken away.

Fig. 2 is a vertical section on the line II-'II of Fig. 1.

Fig. 3 is a horizontal section on the line III-III of Fig. 2.

Fig. 4 is a view similar to Fig. 1 but showing a modification.

Fig. 5 'is a vertical V-V of Fig. 4. Fi 6 a vertical section on the line of Fig. 4.

InFigures 1 to 3, 4 is the main body of the door and 5 the door plpst, Aor otherwise stated, the vehicle body. he fastening device according to the invention comprises .50 a shaft or Spindle 6 which traverses the main body of the door 4.and is terminated at one' end by an outer handle 7 and at the other end by an inner vhandle 8 situated within` the vehicle. On the outep sidethe spindle 6 tra-verses a casing 9 secured Ato the section on the line" door by screws 10 and containing an arm 11 secured to the spindle 6 and pulled downwardly by a spring 12 disposed in the main body of the door and attached at the other end to a suitable-hook 13.

The arm 11 is connected by the link 14 to a pivoted door latch 15 mounted on an axle 16 between the walls of the casing 9 and extending outwardly from the latter on the side next the door post 5. A hook-shaped keeper 17 is secured to the body 5 by the screws 18 and is placed at the same level as the latch 15, so that the latter may engage the said keeper for closing purposes. Above the cut-out part of the said hooked keeper is mounted a catch 19 secured to a shaft or spindle 20 which traverses the door post 5 and is. controlled by the spring 21 (Fig. 3) in such manner that the said catch will tend to assume a vertical position. At the end of the spindle 20, and on the inside of the vehicle, is mounted an arm 22 provided with a lug 23; on the outside of the vehicle there Vis rovided a similar lug 24 which is formed) integral with the catch 19. The said device is completed by a fastening element 25contained in-the casing 9 of the .door and secured to a spindle 26 traversing the said door. By the rotation of spindle 26, the element 25 can be brought against a flat partor seat 27 of the latch 15 whereby all motion of said latch will be prevented. The element 25 can be lrotated'eitherv from the inside or the outside of the vehicle by means of a special key which may be engaged in an eccentric recess 28 formed in the respective ends of the axis 26. The positions of holding or release ofthe element 25 are determined b a spring strip 29 which abuts against the at parts of the said element, said parts having suitable directions. Upon the said door post is mounted a plate' 30 which forms an acute angle with the inner face of the vehicle body and an obtuse angle with its outer face, this in fact coinciding with the known arrangement. of vehicle doors. It should be noted that I dispose the inner handle 8 vso that it extends outwardly beyond the door, in order that it may positively control the closing of the door. f ,In fact, if the door is open and one pushes upon it in order to close it, the inner andle .8 will encounter the end of the hooked keeper 17 whose shape isy so designed as to 'no raise the said handle, which thus slides upon the said keeper and engages the interior of the door frame, by friction contact with the plate 30; the handle continues to rise, and 1t `then drops behind the door post under the action of the -spring 12.

.The latch engages the said keeper and descends at the same time as the handle 8, and then drops into the cut-out part of the said keeper, pushing aside the catch 19 and then allowing it to resume its vertical position above the cut-out part. It will be observed that in this position of the parts,- the door is held closed both by the internal handle 8 which is brought down at the rear of the door post 5 and by the latch 15 which is engaged inthehook keeper 17 and is held by the catch 19.

To open the door from the inside or the outside, it will thus be necessary, before operating the handles, to separate the catch 19 from the hook 17 by pushing either of the lugs 23, 24 in the proper direction;

Y when the said catch is disengaged, it is simply necessary to operate one of the handles 7 or 8 in order to raise both the handle 8 and the latch 15, so that the door .may be opened. y v

bviously, this series of movements cannot take place spontaneously, so that my said device will obviate all danger of accidents which might be caused by opening4 of the door.

The modification which is shown in Figs. 4 to 6 comprises a metallic casing 40 which is inserted into the wood of the door 41 and/ is secured by the screws 42; said casing maintains the spindle 43 of the door handles, whereof the outer handle 44 is of known form and the inner handle 45 is disposed as in the preceding caseso as to descend at. the interior behind the doorl post and thus serve as a closing element.

The spindle 43 is controlled by a sprin 46 which surrounds the said spindle an whereof one end is engaged therewith and the other end with the casing 40. s To the spindle 43 is keyed the latch 47 which ex tends from the said casing outwardly bev yond the door and is .adapted to; enter a keeper 48 4disposed in the wood of the door post.v The said keepervhas only a small porL tion 49 extending outwardly, it being adapts, ed to start the necessary movements ofthe handle 4 5 and of the latch 47 when closing the'door.- l v 'Within the keeper 48 is disposed a holdv ing latch 50 which issecured to a spindle 51 extending,l entirely 'through the` door post and having mounted at each end a push in the eener 48.'

The fastening element in this form comprises a holding arm 54 contained in the casing 40 and secured to a spindle 55 which has mounted at each end an eccentric socket such as 56 into which may be/inserted a special key whereby the 'spindle 55 may be placed in one of the two positions corresponding respectively to the locking of the device or to the complete release of its arts. A spring strip v57 is provided in or er to maintain the arm 54 in either of the aforesaid positions.

The said modification operates in the same manner as the preceding device, so that no further description'of the same will benecessary. But it should be remarked that in the present case the catch, the latch, and the keeper are no longer visible from the exterior, thus providing a vehicle body comprising no unsightly projections. Also, the said latch is directly mounted upon the axis of the door handles, thus eliminating two cumbersome elements comprised in the preceding device.

In addition to theconsideration of safety, which is the chief object of the invention, my said device has other advantages, among which may be mentioned'the following The said device is very substantial, this beingv due to the simple character of the elements, whereby a most reliable operation is assured.

Due to the disposition of all the elements on the outer edge' of the door, this latter may kmodify the said apparatus in detail without departing from the principle of the invention.

I claim 'as my invention:

A door fastener, comprising a casing for attachmentito a door; a kee er for at-l tachment to the door post; a latc mounted ,in vthe casin for engagement with the keeper; a spin e for operating-the latch passing transversely throu h said casing and rovided at its ends with inner and outer andles located on opposite sides of the door,

'the inner handle normally projecting be- Eiecepr lug 52. Thesaid spindle is brought v yond the'door edge so that its path of move'- ment with the .door intersects the keeper;

and guide means on said keeper 'to engage.

the projecting portion of said handle and move it out of line with the keeperso as to' enable it to pass by the keeper as the door completes its closing movement; said handle finally disen aging said means when the door reaches its Illy-closed position, 'where- .by it is4 enabled to automatlcally assume a in the casing for engagement with the keeper; a spindle ier operating the latch passing transversely through said casing and provided at its ends with inner and outer han- 5 dles locatedv on opposite sides of the door,

the inner handle' normally projecting beyond the door edge so that its path of movement with the door intersects the keeper;

, and guide means on said keeper to'engage the projecting' portion o f said handle and lift it outof line with the keeperso as lto enable' it to pass by the latter as the door completes its closing movement; saidhandle finally dropping after it has passed bysaid means when the door reaches its fully-closed position, whereby it is enabled to automatically assuxne a position in whichit projects Y across the door post.

In testimony whereof I aix my si natlire.

MAURICE COURT `AU. 

